diff --git a/interrupt/handlers.cc b/interrupt/handlers.cc
index 6e00494..72bf885 100644
--- a/interrupt/handlers.cc
+++ b/interrupt/handlers.cc
@@ -9,6 +9,8 @@
 
 #include "../device/ps2controller.h"
 
+#include "../sync/ticketlock.h"
+
 void printContext(const InterruptContext *context) {
   DBG << "ip: " << hex << context->cs << ':' << context->ip
       << " sp: " << context->ss << ':' << context->sp << " flags" << bin
@@ -68,12 +70,16 @@ enum PAGE_FAULT_ERROR {
 }
 
 extern TextStream kout;
+extern Ticketlock ticketlock;
 void handle_keyboard() {
-    //dout[0] << "test"<<endl<<flush;
+    ticketlock.lock();
+
     Key key = Key();
     if (PS2Controller::fetch(key)) {
-        kout << key.ascii() << flush ;
+        kout << key.ascii() << endl << flush ;
     }
+
+    ticketlock.unlock();
     LAPIC::endOfInterrupt();
 }
 
diff --git a/main.cc b/main.cc
index 6c9d43b..4b3e4a3 100644
--- a/main.cc
+++ b/main.cc
@@ -108,7 +108,7 @@ extern "C" int main() {
 
   DBG << "Main CPU " << static_cast<int>(LAPIC::getID()) << endl << flush;
 
-  //Application{}.action();
+  Application{}.action();
   while (true){
       DBG << "pos: " << testx << ", " << testy << endl << flush;
       Core::pause();
diff --git a/user/app1/appl.cc b/user/app1/appl.cc
index 3fcdba8..5f37b32 100644
--- a/user/app1/appl.cc
+++ b/user/app1/appl.cc
@@ -25,7 +25,8 @@ void activeWaitDelay(uint64_t cycles) {
     uint64_t counter = 0; // Use volatile to prevent optimization
     for (uint64_t i = 0; i < cycles; ++i) {
         counter++; // Simple operation to consume cycles
-		asm("nop");
+		//asm("nop");
+		Core::pause();
     }
 }
 
@@ -39,7 +40,7 @@ void Application::action() {  // NOLINT
 		}
 		kout << endl << flush;
 
-		activeWaitDelay(1000000000);
+		activeWaitDelay(10000000);
 		if(cnt >= sizeof(text)-1)
 			cnt=0;